Noooooooo!

Hey girls,
I am on the pill. I missed one this month and took it the next day, and the same week I took one about 12 hours late! This was last week. Maybe the week before. I am not supposed to start my period for another 3 or 4 days. Could this be implantation bleeding? Would I even be able to tell with a test yet?! UGHHHHHHHH HELP